Home / 31,990.26-47,992.41-9,805.31

Finding the Fourth Proportional to 31,990.26, 47,992.41 and 9,805.31

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Solution

The fourth proportional to 31,990.26, 47,992.41 and 9,805.31 is: 14,710.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,990.26 : 47,992.41 = 9,805.31 : x
  2. Step 2: Convert to fraction form
    31,990.26/47,992.41 = 9,805.31/x
  3. Step 3: Cross multiply
    31,990.26x = 47,992.41 × 9,805.31
  4. Step 4: Simplify right side
    31,990.26x = 470,580,217.74
  5. Step 5: Solve for x
    x = 470,580,217.74/31,990.26
  6. Step 6: Final answer
    x = 14,710.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.